Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
CMOS IC
LCD Digital Watch
Ordering number:ENN1433A
LC5645N
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
51501TN (KT)/4204KI, TS No.1433–1/10
Functions
Real time (month, date, hours, minutes, seconds).
2 switches of SET switch, SELECT switch.
LCD light-up system by duplex drive.
Selectable real time display mode.
Hours, minutes display mode.
Month, date display mode.
Seconds display mode.
Alternating display mode available.
12/24-hour operation mode selectable by chip bonding.
Automatic calendar (Programmed to count date in Feb-
ruary up to the 28th).
Reference frequency fOSC=32.768kHz.
Battery voltage 1.5V, with built-in doubler circuit.
Hours
Minutes
Hours, minutes display mode
Month
Date
Month, date display mode
Seconds
Seconds display mode
Month
Month display mode
Date
Date display mode
Hours
Hours display mode
Minutes
Minutes display mode
5. Output pins for display ........... 14 pads
Segment output 1st digit : 3 segments, 3rd digit : 6
segments, other 2 digits :
7 segments
Colon ......... 1 segment
Common .... 2 pins of COMMON1, COMMON2
6. Total number of pads ........ 32 pads
Display System
1. 3-1/2 digits LCD
2. 32Hz duplex drive
3. Display font
4. Panel layout